From patchwork Mon May 27 10:21:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Yannick FERTRE X-Patchwork-Id: 10962485 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BDAA714C0 for ; Mon, 27 May 2019 10:21:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A969628A35 for ; Mon, 27 May 2019 10:21:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 98EE828A3A; Mon, 27 May 2019 10:21:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5676B1FFE6 for ; Mon, 27 May 2019 10:21:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 34CEE89870; Mon, 27 May 2019 10:21:58 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id C2FB489861 for ; Mon, 27 May 2019 10:21:55 +0000 (UTC) Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4RAGdv9031349; Mon, 27 May 2019 12:21:47 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2sptu9jjhg-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 27 May 2019 12:21:47 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 636BB31; Mon, 27 May 2019 10:21:46 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas24.st.com [10.75.90.94]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 347112804; Mon, 27 May 2019 10:21:46 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by Safex1hubcas24.st.com (10.75.90.94) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 27 May 2019 12:21:46 +0200 Received: from localhost (10.201.23.97) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 27 May 2019 12:21:45 +0200 From: =?utf-8?q?Yannick_Fertr=C3=A9?= To: Andrzej Hajda , Laurent Pinchart , David Airlie , "Daniel Vetter" , Heiko Stuebner , Sam Ravnborg , Yannick Fertre , Nickey Yang , Philippe Cornu , Benjamin Gaignard , Vincent Abriou , Maxime Coquelin , Alexandre Torgue , , , , Subject: [PATCH v1 0/2] dw-mipi-dsi: add power on & off optional phy ops and update stm Date: Mon, 27 May 2019 12:21:37 +0200 Message-ID: <1558952499-15418-1-git-send-email-yannick.fertre@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.201.23.97] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-05-27_07:, , signatures=0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : subject : date : message-id : mime-version : content-type : content-transfer-encoding; s=STMicroelectronics; bh=ixDf88IcNb3TU6tNgq8bjWEyDdaEJ144CZTxviT3UTE=; b=ff8ILc4ioPMsKqkyweSlcBLsWP3MVx7APoWrr8IMFcUnhQbUOuM2cSK01jfzckrRQ1P3 zPxU1nT7zO+zDGVsWWXKJFTD44GvrXet2j92zvpt0KVP6IL0QAnCbl5Amb26cx42FGLn PnlqIWbZ84Axixb93FC6KYocoPJ2V8J0yTda2eYpj2dsn1y0LZVIYqYknBlaWeJ0vI0c t/pm1I8WOT1U82e2h4eiizrCIWdso8nk3tmOCxkrl471FgxRc9gKBFos8alVZkxI10f8 7FVl3dipDCqPhYVREzJd6YTFhU8UyVGdDuwpuhxNGoBAjXytNIT4M4SHcpZSNNJVDlNS kA== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP These patches fix a bug concerning an access issue to display controler (ltdc) registers. If the physical layer of the DSI is started too early then the fifo DSI are full very quickly which implies ltdc register's access hang up. To avoid this problem, it is necessary to start the DSI physical layer only when the bridge is enable. Yannick Fertré (2): drm/bridge/synopsys: dsi: add power on/off optional phy ops drm/stm: dsi: add power on/off phy ops drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 8 ++++++++ drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 21 ++++++++++++++++++++- include/drm/bridge/dw_mipi_dsi.h | 2 ++ 3 files changed, 30 insertions(+), 1 deletion(-) --- 2.7.4